usually you would use it to conceal what your really trying to your friends say infront of parents
Aneil - Hey Nikkhoo let's durka after dinner.
Nikkhoo - Nah sorry man, I'm out of durka right now.
"He called my all in on the flop, thinking he already had the straight when he just had a gun-shot chance. With four outs, the dick caught it."
"Wow, that's so much fucking durka."